Heterodera canadensis | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Nematoda |
Class: | Secernentea |
Order: | Tylenchida |
Family: | Heteroderidae |
Genus: | Heterodera |
Species: | H. canadensis |
Binomial name | |
Heterodera canadensis | |
The Canada goose, or Canadian goose, is a large wild goose with a black head and neck, white cheeks, white under its chin, and a brown body. It is native to the arctic and temperate regions of North America, and it is occasionally found during migration across the Atlantic in northern Europe. It has been introduced to the United Kingdom, Ireland, Finland, Sweden, Denmark, New Zealand, Japan, Chile, Argentina, and the Falkland Islands. Like most geese, the Canada goose is primarily herbivorous and normally migratory; often found on or close to fresh water, the Canada goose is also common in brackish marshes, estuaries, and lagoons.
The Canada lynx, or Canadian lynx, is a medium-sized North American lynx that ranges across Alaska, Canada, and northern areas of the contiguous United States. It is characterized by its long, dense fur, triangular ears with black tufts at the tips, and broad, snowshoe-like paws. Its hindlimbs are longer than the forelimbs, so its back slopes downward to the front. The Canada lynx stands 48–56 cm (19–22 in) tall at the shoulder and weighs between 5 and 17 kg. The lynx is a good swimmer and an agile climber. The Canada lynx was first described by Robert Kerr in 1792. Three subspecies have been proposed, but their validity is doubted; it is mostly considered a monotypic species.
For the magazine from West Virginia see Goldenseal (magazine)
The bighorn sheep is a species of sheep native to North America. It is named for its large horns. A pair of horns might weigh up to 14 kg (30 lb); the sheep typically weigh up to 143 kg (315 lb). Recent genetic testing indicates three distinct subspecies of Ovis canadensis, one of which is endangered: O. c. sierrae.
The North American beaver is one of two extant beaver species, along with the Eurasian beaver. It is native to North America and introduced in South America (Patagonia) and Europe. In Canada and the United States, the species is often referred to simply as "beaver", though this causes some confusion because another distantly related rodent, Aplodontia rufa, is often called the "mountain beaver". Other vernacular names, including American beaver and Canadian beaver, distinguish this species from the other extant beaver species, Castor fiber, which is native to Eurasia. The North American beaver is one of the official national wildlife of Canada symbols and is the official state mammal of Oregon and New York.
The elk, also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range of North America and Central and East Asia. The common name of elk is open to confusion as elk is the name used in British English for the larger Alces alces, with similar names used by other European languages. In North America the common name for Alces alces is moose. The name "wapiti" is sometimes used in North America for Cervus canadensis'’, which derives from the Shawnee and Cree word waapiti, meaning 'white rump'.
Canadensis is a New Latin term meaning of Canada, used in taxonomy to denote species indigenous to or strongly associated with Canada.
Heterodera cajani is a plant pathogenic nematode affecting pigeonpeas, who is cited as an invasive species.
Heterodera gambiensis is a plant pathogenic nematode affecting pearl millet.
Heterodera latipons, the Mediterranean cereal cyst nematode or wheat cyst nematode, is a plant pathogenic nematode.
Heterodera rosii is a plant pathogenic nematode that attacks chickpea.
Heterodera is a genus of nematodes in the family Heteroderidae. Members of the genus are obligate parasites and different species attack different crops, often causing great economic damage. The genus is unique among nematode genera because of the ability of the female to transform into a tough, brown, cyst which protects the eggs which have been formed within her body. The name heterodera "refers to the different 'skins' of female and cyst."
Heterodera amygdali is a plant pathogenic nematode native to Tajikistan.
Cereal cyst nematode (CCN) is a plant pest caused by Heterodera avenae, Heterodera bifenestra, Heterodera hordecalis, Heterodera latipons, and Heterodera gotland in the following hosts: Avena sativa, Hordeum vulgare, Secale cereale, Triticum aestivum, and × Triticosecale.
Heterodera bifenestra is a plant pathogenic nematode, that is a causal agent of the cereal cyst nematode.
Heterodera cardiolata is a plant pathogenic nematode.
Heterodera oryzicola, the rice cyst nematode, is a plant pathogenic nematode, which is cited as an invasive species.
Heterodera zeae, the corn cyst nematode (CCN), is a plant parasitic nematode that feeds on Zea mays (maize/corn). The CCN has a limited economic impact worldwide due to its high soil temperature requirements.
Pasteuria nishizawae is a mycelial and endospore-forming bacterium parasitic on cyst nematodes of genera Heterodera and Globodera.